Como dizer "Cesta básica" em inglês

I do not know of a term for it in the USA. In Brazil "cestas basicas" are common, but that is in Brazil. A USA company may give a "Christmas basket", but it would be more common to give the employee a turkey (yes, a frozen turkey) or, which would be more likely, a coupon valid in a specified store that is valid for X amount of dollars for either a specific item such as a turkey or ham, or any food items the employee chooses to buy.

When translating, it is important that Brits, Yanks, Aussies, etc. are not English speaking Brazilians. They come from other cultures with other traditions. Sometimes there is simply not a good way to translate something into their language because it does not exist in their country and culture.